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時間:2019-05-24
《骨髓間充質干細胞治療小鼠自身免疫性肝炎》由會員上傳分享,免費在線閱讀,更多相關內容在行業(yè)資料-天天文庫。
1、萬方數據主堡趟絲苤查;!!i生!旦筮!i鲞笠!塑£!i!』垡g!』!業(yè)!型!!!!!y!!:!;!叢!:!骨髓間充質干細胞治療小鼠自身免疫性肝炎陳楠劉應莉劉文天王邦茂孫朝俠王玫韓明哲【摘要】目的探討骨髓問充質干細胞(MSC)移植對小鼠自身免疫性肝炎(AIH)的治療作用及機制。方法采用C57BL/6小鼠肝特異性抗原S-100與弗氏完全佐劑誘導同種系44只小鼠建立AIH模型。造模后取6只小鼠驗證AIH模型,余38只分為3組,MSC移植組(A組)14只進行MSC尾靜脈注射治療,地塞米松(DXM)治療組(B組)12只予DXM
2、腹腔注射治療,PBS對照組(c組)12只予腹腔注射PBS。健康對照組(D組)18只未造模未予任何處理。于實驗第5、9周測小鼠體質量,測血清ALT水平,處死各組小鼠取肝組織進行病理學檢查并行肝臟炎癥活動度Knodell評分,分離小鼠脾臟T淋巴細胞行增殖抑制實驗。統(tǒng)計學分析采用秩和檢驗、方差分析和t檢驗。結果A、B組小鼠治療后體質量均呈上升趨勢(F=15.678,P%0.01;F一3.730,P一0.037),C組治療前后變化差異無統(tǒng)計學意義(P>o.05)。實驗第5、9周,A、B組小鼠血清ALT水平逐漸下降,各時間點比
3、較差異有統(tǒng)計學意義(F一20.267,P<0.01;F=4.277,P一0.034);C組小鼠血清ALT水平治療前后變化差異無統(tǒng)計學意義(P>0.05)。實驗第5、9周,A組小鼠血清ALT降低程度大于B組,差異均有統(tǒng)計學意義(£一3.566、3.218,P均<0.05)。實驗第5、9周,A、B組小鼠Knodell評分逐漸下降,各時間點比較差異有統(tǒng)計學意義(F一8.070,P一0.003;F一6.547,P一0.009);C組小鼠Knodell評分治療前后變化差異無統(tǒng)計學意義(P>0.05)。實驗第9周時,A、B、C三
4、組小鼠Knodell評分間差異有統(tǒng)計學意義(F一4.477,P=0.029)。體外脾淋巴細胞增殖抑制實驗顯示,MSC培養(yǎng)上清液能顯著抑制S-100抗原和刀豆蛋白A刺激的T淋巴細胞增殖,吸光度值分別為0.267±0.167比0.217±0.128和0.165±0.187比0.082±0.051,差異均有統(tǒng)計學意義(£一7.187、4.602,P均5、eautoimmunehepatitistreatedbybonemarrowmesenchymalstemcellCHENNan。LjUYing—li,L,UWen—tian,WANGBang—mao,SUNChao—xia,WANGMei,HANMing—zhe.DepartmentofGastroenterology,TianjinUniversityGeneralHospital,Tianjin300052,ChinaCorrespondingauthor:LI【,Wen—tian,Email:wentian6、liul60@gmail.com【Abstract]0bjectiveToexplorethetherapeuticeffectsandmechanismofbonemarrowmesenchymalstemcells(MSC)transplantationinmiceautoimmunehepatitis(AIH).MethodsAIHmodelwasestablishedin44C57BL/6mice,whichwereinducedbyhomologousseriesliver-specificantigenS7、-100andFreund’scompleteadjuvant.Aftermodeling,sixmicewerecollectedforAIHmodelconfirming.Theother38miceweredividedintothreegroups.FourteenmiceofMSCtransplantationgroup(groupA)weretreatedbyMSCtailveininjection,12miceofdexamethasone(DXM)group(groupB)weretreatedbyD8、XMintraperitonealinjection,and12miceofPBScontrolgroup(groupC)receivedphosphatebuffersaline(PBS)intraperitonealinjection.EighteenmiceofhealthycontrolDOI:10.3760/cma.j.issn.02
5、eautoimmunehepatitistreatedbybonemarrowmesenchymalstemcellCHENNan。LjUYing—li,L,UWen—tian,WANGBang—mao,SUNChao—xia,WANGMei,HANMing—zhe.DepartmentofGastroenterology,TianjinUniversityGeneralHospital,Tianjin300052,ChinaCorrespondingauthor:LI【,Wen—tian,Email:wentian
6、liul60@gmail.com【Abstract]0bjectiveToexplorethetherapeuticeffectsandmechanismofbonemarrowmesenchymalstemcells(MSC)transplantationinmiceautoimmunehepatitis(AIH).MethodsAIHmodelwasestablishedin44C57BL/6mice,whichwereinducedbyhomologousseriesliver-specificantigenS
7、-100andFreund’scompleteadjuvant.Aftermodeling,sixmicewerecollectedforAIHmodelconfirming.Theother38miceweredividedintothreegroups.FourteenmiceofMSCtransplantationgroup(groupA)weretreatedbyMSCtailveininjection,12miceofdexamethasone(DXM)group(groupB)weretreatedbyD
8、XMintraperitonealinjection,and12miceofPBScontrolgroup(groupC)receivedphosphatebuffersaline(PBS)intraperitonealinjection.EighteenmiceofhealthycontrolDOI:10.3760/cma.j.issn.02
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